Okay, så I'm having some troubles with these: cos(a) > 0,62 [0;360]degrees -0,56 < cos(a) < -0,14 [0;360]degrees (a stands for angle) It just says solve these inequations. How am I supposed to do this?
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Originally Posted by No Logic Sense Okay, så (btw do you use a swedish keynoard?) I'm having some troubles with these: cos(a) > 0,62 [0;360]degrees -0,56 < cos(a) < -0,14 [0;360]degrees (a stands for angle) It just says solve these inequations. How am I supposed to do this? 1. Draw rough sketches of the graphs (see attachments) 2. Use your calculator to get the (more or less) exact values of a.
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